DMARC Digests by Postmark vs.
Docker DMARC Reports in 2026
DMARC Digests by Postmark
0.0/5
Docker DMARC Reports
0.0/5
vs.
We tested DMARC Digests by Postmark and Docker DMARC Reports for 90 days across a corporate domain, a marketing subdomain, and a parked domain. DMARC Digests was faster for a non-specialist team to read and act on, while Docker DMARC Reports gave technical operators a free self-hosted parser with more ownership and more maintenance.
Priya Raman
Senior Software Engineer
Published 4 Nov 2025
Updated 30 May 2026
8 min read
Summarize with
DMARC Digests by Postmark
Simple hosted DMARC reporting
Starts at
Free plan available
Best fit
Small teams that want email-first DMARC monitoring without running infrastructure
In one line
DMARC Digests by Postmark turned Microsoft 365, Google Workspace, SendGrid, Mailchimp, and support desk traffic into readable weekly summaries, but deeper workflow ownership stayed mostly manual.
Docker DMARC Reports
Free self-hosted DMARC report viewer
Starts at
$0
Best fit
Technical teams that can run containers, databases, IMAP polling, access control, and backups
In one line
Docker DMARC Reports ingested aggregate reports reliably once configured, but Suped's product is a useful benchmark when staff time for sender identification, alerting, and MSP handoff must be costed.
Suped
The third option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn more
Choose DMARC Digests for managed simplicity, Docker DMARC Reports for self-hosted control
Pick DMARC Digests by Postmark if
Best for small teams that want hosted DMARC reporting with minimal upkeep
Our primary domain was live in under 20 minutes after adding the rua record and waiting for the first mailbox provider reports.
Known senders such as Microsoft 365, Google Workspace, SendGrid, and Mailchimp were easier to review in the digest format than in raw XML.
The forwarded mail SPF failure was explained well enough for a marketing operator to understand why DKIM alignment mattered.
Free plan available
Pick Docker DMARC Reports if
Best for technical operators who want free self-hosted DMARC report storage
We could run the parser for all three domains without vendor domain limits, using our own IMAP mailbox and database.
The parked domain spoof sample was visible in the report viewer, but we had to classify and escalate it ourselves.
The setup made sense for a team comfortable with Docker, database backups, reverse proxy rules, and access controls.
Free plan available
Consider Suped if
Suped's product is the third option when guided fixes, hosted records, and simpler ownership matter
Use guided fixes as a buying criterion when the team needs next steps for SPF, DKIM, DMARC, and sender ownership instead of just report rows.
Prioritise automated issue detection and alert quality when forwarded mail failures, spoof attempts, and unknown senders need routing without daily manual review.
Check published starter pricing and MSP workflow needs up front when account separation, recurring reports, and handoff notes affect how the platform will be used.
Free plan available
The differences that actually change your week
DMARC Digests by Postmark
Docker DMARC Reports
Suped
DMARC report analysis
Aggregate report parsing, authentication summaries, and domain-level review.
Hosted report analysis with digest summaries
Self-hosted report analysis
Supported
Source detection
Identifying sending services behind DMARC traffic.
Partial, known senders were clearer
Manual workflow
Supported
Forward detection
Separating forwarding-related SPF failures from real sender problems.
Partial explanation
Visible but manual
Supported
Spoof detection
Spotting unauthorised use of the domain.
Supported through DMARC failures
Supported through raw failures
Supported
Notifications and alerts
Actionable notifications beyond routine report viewing.
Email digests
Manual workflow
Supported
Reporting
Recurring summaries and stakeholder-friendly output.
Weekly and monthly reporting
Dashboard only
Supported
API
Programmatic access for reporting or workflow automation.
Not tested
Not tested
Supported
Multi-tenancy
Account separation, grouped clients, and delegated review.
Team access, limited client grouping
Manual account separation
Supported
SPF flattening
Managed SPF flattening or hosted SPF record handling.
Reporting only
Reporting only
Supported
Hosted DMARC
Hosted or managed DMARC record handling.
DNS changes remain manual
DNS changes remain manual
Supported
Hosted SPF
Hosted SPF records or managed SPF updates.
Not supported
Not supported
Supported
Hosted MTA-STS
Hosted MTA-STS policy and reporting workflow.
Not supported
Not supported
Supported
Blocklists and reputation
Blocklist or blacklist monitoring tied to domain reputation.
Not supported
Not supported
Supported
Automatic issue detection
Automatic surfacing of misconfigurations and suspicious changes.
Partial recommendations
Manual workflow
Supported
AI copilot
Assisted interpretation and next-step guidance.
Not supported
Not supported
Supported
DNS monitoring
Monitoring DNS records for changes or broken authentication setup.
Not tested
Not supported
Supported
Self hostable
Can be run on owned infrastructure.
Hosted SaaS
Self-hosted Docker image
Hosted platform
Free trial/free tier
No-cost entry path for testing.
Free monitoring and paid trial
Free self-hosted use
Supported
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric after the same 90-day setup: three domains, five approved senders, controlled authentication cases, and review of onboarding, policy movement, alerts, exports, account separation, pricing clarity, and support handoff. Higher is better in every row.
DMARC Digests scores higher for managed review, Docker DMARC Reports scores higher for self-hosted control
DMARC Digests gave us faster sender review and clearer next steps for the primary domain, especially when Microsoft 365 and Google Workspace aligned cleanly but Mailchimp and SendGrid needed confirmation. Docker DMARC Reports gave us low-cost ownership of the report pipeline, but the unknown sender, forwarded SPF failure, and spoof sample all required manual classification outside the product. Both products scored 0.0 where the feature was not supported, including hosted SPF, hosted MTA-STS, and blocklist or blacklist monitoring.
DMARC Digests by Postmark score
48.5/100
Docker DMARC Reports score
25.5/100
DMARC Digests by Postmark
48.5/100
DMARC enforcement
6.5
Customer support
6.5
Source resolution
6.5
Setup and onboarding
7.0
MSP workflows
4.0
Alerting and integrations
3.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
8.0
Time to enforcement
6.5
Docker DMARC Reports
25.5/100
DMARC enforcement
3.0
Customer support
1.0
Source resolution
3.5
Setup and onboarding
4.0
MSP workflows
2.0
Alerting and integrations
0.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
9.0
Time to enforcement
3.0
Feature set
Reporting vs raw control
DMARC Digests has the stronger managed feature set. Docker DMARC Reports has the stronger self-hosted base.
DMARC Digests gave us more usable DMARC reporting out of the box, especially for known senders and digest review. Docker DMARC Reports was useful when we wanted to own ingestion and storage, but it did not turn findings into guided fixes or automated issue detection. For buyers comparing these tools with Suped's product, that gap matters when an unknown sender or spoof attempt needs a clear owner and next action.
DMARC Digests by Postmark
0/5
Microsoft 365 grouped clearly
Mailchimp mismatch easier to explain
Unknown sender had context
Docker DMARC Reports
0/5
Own IMAP report ingestion
Google Workspace parsed cleanly
Forwarded SPF needs triage
DMARC Digests gave us clean hosted visibility for Microsoft 365, Google Workspace, SendGrid, and Mailchimp without asking us to run an IMAP poller or database. The aligned SPF pass and aligned DKIM pass cases were easy to separate, and the SPF pass with visible from mismatch was easier to explain because the dashboard grouped authentication outcomes in a way a non-specialist could review. The unknown sender still needed human judgment, but the product gave us enough context to compare it against approved senders.
Docker DMARC Reports covered the core open-source reporting loop: fetch aggregate reports, parse them, store them, and show the results in a web viewer. It handled Microsoft 365, Google Workspace, SendGrid, and Mailchimp traffic after we wired the mailbox and database, and the DKIM pass on a subdomain appeared in the parsed results. The product did not add service-name resolution, ownership routing, or guided remediation, so the unauthorized spoof sample and forwarded SPF failure were operational tasks for our team.
User experience
Guidance vs control
DMARC Digests is easier to run weekly. Docker DMARC Reports is easier to own technically.
DMARC Digests had the smoother user experience for someone who needs to check reports, identify senders, and decide whether a domain can move toward quarantine. Docker DMARC Reports was usable after setup, but the user experience included infrastructure work that never appears inside the product UI.
DMARC Digests by Postmark
0/5
Three domains added quickly
Unknown sender easier to isolate
Forwarded SPF explained clearly
Docker DMARC Reports
0/5
Setup needs Docker comfort
Unknown sender remains manual
Forwarding explanation needs notes
Onboarding the three test domains in DMARC Digests was mostly a DNS and verification task. The primary corporate domain became useful first, the marketing subdomain needed a separate paid monitored domain for separate review, and the parked domain made spoof visibility easy to isolate. When we looked for the unknown sender, the interface narrowed the review to authentication status and source patterns, and the forwarded mail SPF failure was easier to explain because DKIM alignment remained visible.
Docker DMARC Reports required more setup before the first useful screen: mailbox access, container configuration, database connection, scheduler checks, and web exposure rules. Once reports arrived, the viewer let us inspect the three domains, but finding the unknown sender meant comparing IPs and source names manually. The forwarded mail SPF failure was visible as an authentication result, but explaining it to a non-technical owner required notes outside the product.
Support
Human help vs self support
DMARC Digests gives small teams a clearer support path. Docker DMARC Reports expects operators to support the stack.
DMARC Digests had a practical support path for setup questions, DNS handoff, and product-level clarification. Docker DMARC Reports had no managed onboarding path in our test, so escalation, uptime, security exposure, and DMARC interpretation stayed with the operator.
DMARC Digests by Postmark
0/5
Clear DNS handoff
Human help available
Light enterprise fit
Docker DMARC Reports
0/5
Operator owns uptime
Runbook required
No managed escalation
With DMARC Digests, support expectations matched a lightweight hosted product. DNS handoff was straightforward because the required rua record was clear, and a small team could ask for help when a report source looked unfamiliar. It did not feel like enterprise onboarding, and complex policy programs still needed internal ownership, but the path for setup and escalation was visible.
With Docker DMARC Reports, support was effectively self support. We owned the IMAP mailbox, database, container health, reverse proxy, TLS, backups, and any explanation given to a domain owner. For enterprise onboarding, that meant building our own runbook for DNS handoff, escalation, access control, retention, and security review before treating the viewer as production infrastructure.
Suitability
SMB fit vs operator fit
DMARC Digests fits small managed domains. Docker DMARC Reports fits technical teams that accept operational ownership.
DMARC Digests is the better fit when a small business wants recurring reports and light handoff without running infrastructure. Docker DMARC Reports fits teams that need self-hosted data and accept manual sender ownership, alerting, and client reporting. Buyers comparing either option with Suped's product should test account separation, alert quality, recurring reports, and client handoff before committing.
DMARC Digests by Postmark
0/5
Good SMB digest loop
Basic team access
Limited MSP grouping
Docker DMARC Reports
0/5
Operator-first deployment
Manual client handoff
Self-hosted account separation
DMARC Digests worked best for an SMB or lean IT team with a small number of domains. Team access helped internal review, weekly and monthly digests made recurring reporting easy, and the parked domain was simple to watch for spoofing. It was less natural for MSP work because client grouping, branded recurring reports, and repeatable handoff notes were limited in our test.
Docker DMARC Reports fit an operator profile more than a business-user profile. We could group domains through our own deployment choices, but account separation, recurring client reporting, and clean handoff notes were external processes. For an MSP or enterprise, the product can be part of a self-hosted DMARC stack, but the surrounding workflow has to be designed, secured, and maintained.
What each tool feels like after 90 days of real use
DMARC Digests by Postmark
A lightweight hosted choice for small domain portfolios
After 90 days, DMARC Digests felt like a sensible hosted monitor for a team that checks DMARC weekly rather than daily. The primary corporate domain produced useful summaries once Microsoft 365 and Google Workspace reports arrived, and SendGrid plus Mailchimp traffic was easy enough to separate during normal review.
The product became thinner when we tried to run it like a broader email authentication workflow. The unknown sender needed manual owner assignment, the marketing subdomain counted as another monitored domain when we wanted separate visibility, and the parked domain spoof sample was visible but still needed our escalation notes.
Where it wins
Quickest path to readable reports
Good digest format for stakeholders
Clear public per-domain pricing
Human support path exists
Where it lags
No hosted SPF or MTA-STS
Limited MSP account structure
Alerting is digest-led
Only 60 days history on paid plan
Pricing
$14 / month per paid domain
Free tier
Yes
Onboarding
Fast DNS setup
G2 rating
0 / 5
Docker DMARC Reports
A free self-hosted parser for teams with operational capacity
After 90 days, Docker DMARC Reports felt useful when treated as infrastructure rather than a managed DMARC product. Once the IMAP mailbox, database, scheduler, and web viewer were stable, it gave us a free way to inspect aggregate reports for all three domains.
The ongoing work was the tradeoff. We had to classify the unknown sender manually, explain the forwarded mail SPF failure ourselves, track the spoof sample outside the product, and maintain backups, access control, and patching for the stack.
Where it wins
No vendor domain charges
Self-hosted data control
Straightforward report parsing
Works across test domains
Where it lags
No managed support path
No alert routing
Manual sender classification
Infrastructure maintenance required
Pricing
$0 self-hosted
Free tier
Yes
Onboarding
Infrastructure setup
G2 rating
0 / 5
Pricing
DMARC Digests by Postmark
Docker DMARC Reports
Suped
Small
1 domain, up to 1k emails / month.
$0
Free monitoring covers 1 domain with email-only reporting, top-source visibility, and 7 days of history.
$0
The software has no vendor fee, but hosting, mailbox, database, and maintenance costs stay with the operator.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
$28 / month
Public pricing is $14 per month per paid monitored domain, with no public message-volume overage.
$0
No vendor-enforced domain or message cap was found, but capacity depends on infrastructure.
Entry plan covers 2 domains and 100,000 monthly emails, with 90 days retention.
Large
10 domains, up to 1 million emails / month.
$140 / month
Ten paid monitored domains at $14 per domain per month before taxes.
$0
The product fee remains free, while database storage, backups, and report processing capacity become the real cost.
10 domains and 1,000,000 monthly emails, with 365 days retention.
Enterprise
Over 20 domains and 1 million emails / month.
$14 / domain / month
Public documentation lists monthly per-domain billing and no public bulk-domain discount.
$0
No paid enterprise tier was found, so enterprise use requires internally managed infrastructure and process.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
DMARC Digests figures use public list pricing checked on May 15, 2026, with medium and large totals estimated by multiplying $14 per paid monitored domain. Docker DMARC Reports pricing is the public $0 self-hosted software cost checked on May 15, 2026, excluding hosting, database, mailbox, storage, security, and staff time.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Turn unknown senders into owners
In our test, DMARC Digests gave context for the unknown sender and Docker DMARC Reports exposed the data, but ownership still required manual notes. Suped is built to classify sending sources and attach clearer next steps.
Reduce self-hosted operations work
Docker DMARC Reports required mailbox polling, database care, backups, access control, and monitoring before the DMARC work even started. Suped removes that infrastructure layer for teams that want a managed reporting workflow.
Move beyond digest-only action
DMARC Digests made weekly review easy, but alert routing, hosted records, and repeatable handoff were limited in our test. Suped adds guided fixes, hosted SPF and MTA-STS options, and workflow support for teams managing several domains.
The difference was significant. We moved from limited visibility to a much clearer dashboard. Being able to see specific services like Stripe, rather than generic providers like Amazon SES, helps us resolve email authentication issues faster.
Markus Hugenschmidt, Managing Director, Jam Cyber
Migrating from DMARC Digests by Postmark or Docker DMARC Reports?
We have done the migration enough times to know the shape.
Get started
Step 01
Add domains
Connect the domains you send from and see what is already passing, failing, or missing.
Step 02
Run in parallel
Keep the old setup live while Suped checks alignment, hosts records, and shows what still needs work.
Step 03
Cancel old
Move the remaining work into Suped, keep monitoring in one place, and remove the tools you no longer need.
Frequently asked questions
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See how MONEYME uses Suped
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See how DigiBean uses Suped
How Alliance Group moved from reactive guesswork to proactive email management with Suped
See how Alliance Group uses Suped
How Suped gave Maaser the confidence to finally move to strict DMARC enforcement
See how Maaser uses Suped
